According to Net Applications, the open-source Firefox grabbed another half a percentage point of usage share last month, accounting for 13.5% of all browsers, up from October's 12.96%. Internet Explorer's share, meanwhile, fell from 81.28% to 80.56%. If current trends continue, IE will have lost 5 percentage points during 2006 and will likely dip under 80% for the first time in more than six years.
Apple Computer's Safari posted a tenth of a percent gain in November, while Opera's share increased by 0.06%.
The release of IE 7 and Firefox 2.0, Mozilla's October update, have begun to affect usage, Net Applications' data showed. IE 7 use, which Microsoft is currently pushing to users via its Automatic Updates security update service, nearly tripled in November to 8.84% of all browsers, compared to only 3.18% in October. Mozilla's Firefox 2.0 boosted its share five-fold over the previous month's; it accounted for 3.61% of November's usage, but just 0.69% of October's.